发明名称 |
Telescopic guide wand for floor-cleaning appliances |
摘要 |
The invention is directed to a telescopic guide wand for floor-cleaning apparatus such as household vacuum cleaners. The guide wand includes two concentrically arranged tubes which telescopically engage each other and conjointly define an inner space to accommodate the electrical supply cable for the motor blower head of the vacuum cleaner. The tubes are latched with respect to each other in several steps and the supply cable extends as helically configured cable within the upper portion of the wand. The supply cord extends concentrically out of the end of the upper tube which is configured as a handle and can be connected to the house electrical supply system. The end of the guide wand facing toward the apparatus has a connecting device disposed thereon. On its upper member, the guide wand has the following: a stowing cavity for the cable lined with insulating material; a guide sleeve minimizing the telescoped overall length of the wand which supports, when the wand is in its extended position, the portion facing the motor; and, an end stop to prevent separation of the upper and lower members.
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申请公布号 |
US4989295(A) |
申请公布日期 |
1991.02.05 |
申请号 |
US19900520019 |
申请日期 |
1990.05.07 |
申请人 |
VORWERK & CO. INTERHOLDING GMBH |
发明人 |
GUEHNE, WIELAND;HANNEMANN, PETER;BIRR, HANS-JOACHIM;JAEGER, JUERGEN |
分类号 |
A47L9/32 |
主分类号 |
A47L9/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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